Silicone sealant is an important adhesive, mainly used to bond various glass and other substrates. It is widely used in family life, and there are many types of silicone sealants on the market, and the bond strength of silicone sealants is generally indicated. So, how to use silicone sealant? How long does it take for silicone sealant to cure?
Silicone sealant usage steps
1.Remove moisture, grease, dust and other pollutants on the surface of things. When appropriate, use a solvent (such as xylene, butanone) to clean the surface, and then use a clean rag to wipe off all residues to make it fully clean and dry.
2.Cover the surface near the interface with plastic tape. To ensure that the sealing work line is perfect and tidy.
3.Cut the sealing hose mouth and install the pointed nozzle pipe. Then according to the caulking size, it is cut at 45° Angle.
4.Install the glue gun and press out the glue material along the gap at a 45° Angle to ensure that the glue material is in close contact with the surface of the base material. When the seam width is greater than 15 mm, repeated gluing is required. After gluing, trim the surface with a knife to remove excess glue, and then tear off the tape. If there are stains, remove them with a wet cloth.
5.sealant at room temperature after 10 minutes of surface vulcanization, complete vulcanization takes 24 hours or more, according to the thickness of the coating and the temperature and humidity of the environment.
Silicone sealant cure time
Silicone sealant sticking time and curing time:
Silicone sealant curing process is developed from the surface to the inside, different characteristics of sealant surface dry time and curing time are not the same, so if you want to repair the surface must be carried out before the sealant surface dry. Among them, acid glue and neutral transparent glue should generally be within 5~10 minutes, and neutral miscellaneous color glue should generally be within 30 minutes. If a color separation paper is used to cover a certain area, after applying the glue, it must be removed before the skin is formed.
The curing time of silicone sealant (at room temperature of 20° and humidity of 40%) increases with the increase of bonding thickness. For example, a 12mm thick acid silicone sealant may take 3-4 days to set, but within about 24 hours, the 3mm outer layer has cured. If the place where the sealant is used is partially or completely closed, then the curing time is determined by the tightness of the seal. In various bonding occasions, including airtight conditions, the bonding effect should be fully checked before the bonded equipment is used. Cure will slow down at lower temperatures (below 5°) and humidity (below 40%).
Post time: Mar-11-2022